Wikipedia
Engelbrecht is a common family name ( surname) of Germanic origin. The name Engelbrecht has multiple translations, including "Angle Glorious" and "Bright Angel". The Surname Database says the name is a Dutch variant of an Old High German given name sometimes spelled Ingelbert or Engelbert. Engel can translate as "Angle" (the name of a German folk hero), a person from Angeln, or "angel". Brecht can translate as "bright" or "famous". The name was popular in Middle Age France because it was the name of a son-in-law of Charlemagne.
The first spelling variant of this name recorded in a survey was the Latinized given name Engelbricus in the Domesday Book of 1089. Engelbricht de Stanlega was recorded in the Pipe rolls of Somerset of 1176. Robert Ingleberd was the first record of a variant of "Engelbrecht" used as a family name, dated 1230 in the Pipe rolls of Yorkshire.
Some variations of the surname Engelbrecht such as Engelbert and Engelberdt are common.